Results 181 to 190 of about 11,899,310 (240)

A progressive Lossless/Near-Lossless image compression algorithm

IEEE Signal Processing Letters, 2002
A novel image compression technique is presented that incorporates progressive transmission and near-lossless compression in a single framework. Experimental performance of the proposed coder proves to be competitive with the state-of-the-art compression schemes.
N Memon, B Sankur
exaly   +2 more sources

Lossless compression of AVIRIS images

IEEE Transactions on Image Processing, 1996
Adaptive DPCM methods using linear prediction are described for the lossless compression of hyperspectral (224-band) images recorded by the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS). The methods have two stages-predictive decorrelation (which produces residuals) and residual encoding.
R. E. Roger, Michael C. Cavenor
openaire   +3 more sources

Lossless compression of Peanoscanned images

Journal of Electronic Imaging, 1994
Peanoscanning was used to obtain the pixels from an image by following a scan path described by a space-filling curve, the Peano-Hilbert curve. The Peanoscanned data were then compressed without loss of information by direct Huffrnan, arithmetic, and Lernpel-Ziv-Welch coding, as well as predictive and transform coding.
Joseph A. Provine, Rangaraj M. Rangayyan
openaire   +2 more sources

A Lossless-by-Lossy Approach to Lossless Image Compression

2006 International Conference on Image Processing, 2006
This paper proposes a method of lossless image coding by the aid of lossy image coding. It aims at an improvement in the compression efficiency. We apply a kind of embedded coding to large coefficients in magnitude in a wavelet transform domain. The other wavelet coefficients are encoded by a context-based entropy coding.
Kazuma Shinoda, Hisakazu Kikuchi, Shogo Muramatsu   +2 more
openaire   +2 more sources

LOSSLESS COMPRESSION FOR TEXT AND IMAGES

International Journal of High Speed Electronics and Systems, 1997
Most data that is inherently discrete needs to be compressed in such a way that it can be recovered exactly, without any loss. Examples include text of all kinds, experimental results, and statistical databases. Other forms of data may need to be stored exactly, such as images—particularly bilevel ones, or ones arising in medical and remote-sensing ...
Alistair Moffat, Timothy C. Bell, Ian H. Witten   +2 more
openaire   +1 more source

A method for lossless compression of images

Proceedings of the 4th international conference conference on Computer systems and technologies e-Learning - CompSysTech '03, 2003
Compression of Images is one of the most actual and dynamic developing fields of Informatics and Informational Technologies.The suggested method for lossless compression of images requires that the image is presented as a set of 256 image levels, which must contain pixels from the initial image with identical intensity values.An algorithm containing 4 ...
Zlatoliliya Ilcheva, Valeri Ilchev
openaire   +1 more source

Hypergraph lossless image compression

International Conference on Information Technology: Coding and Computing (ITCC'05) - Volume II, 2005
Hypergraphs are a very powerful tool and can represent many problems. In this paper we define a new image representation based on hypergraphs. This representation conducts to a new lossless compression algorithm for images called HLC. We present the algorithm and give some experimental results proving its efficiency. Finally we show that this algorithm
Alain Bretto, Luc Gillibert
openaire   +2 more sources